Salivary Secretion

Question 1

What does the parotid gland secrete?

Answer 1

serous type

Question 2

What does the sub-mandibular gland secrete?

Answer 2

serous and mucous type

Question 3

What does the sub-lingual gland secrete?

Answer 3

serous and mucous type

Question 4

Name the 5 parts of a salivon

Answer 4

acinar cells (fluid, mucin, enzyme)
duct cells (fluid)
myoepithelial cells (contractile)
striated duct
intercalated duct

Question 5

Name the 6 major functions of salivary secretion

Answer 5

mastication/deglutition
starch digestion (amylase in humans)
evaporative cooling
HCO3 buffering (200L/day in cows)
secretory IgA secretion
R factor binding proteins (vitamin B12 transport)

Question 6

What are the 3 electrolytes in saliva?

Answer 6

Na
Cl
HCO3

Question 7

Parasympathetic effect on saliva

Answer 7

increase flow rate

Question 8

Sympathetic effect on saliva

Answer 8

increase viscosity